package com.accv;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.net.Socket;

public class Processor extends Thread{
	private Socket socket;
	private InputStream in;
	private PrintStream out;
	public final static String WEB_ROOT="c:\\dir"; 
	
	public Processor(Socket socket){
		this.socket =  socket;
		try{
			in = socket.getInputStream();
			out = new  PrintStream(socket.getOutputStream());
		}catch(IOException e){
			e.printStackTrace();
		}
	}
	
	public void run(){
		String fileName = parse(in);
		sendFile(fileName);
	}
	
	public String parse(InputStream in){
		BufferedReader br = new BufferedReader(new InputStreamReader(in));
		String fileName = null;
		try{
			String httpMessage = br.readLine();
			String[]content = httpMessage.split(" ");
			
			if(content.length != 3){
				SendErrorMessage(400, "Client query error!");
				return null;
			}
			
			System.out.println("code:"+content[0]+",filename"+content[1]+",http version:"+content[2]);
			
			fileName = content[1];
			
		}catch(IOException e){
			e.printStackTrace();
		}
		return fileName;
	}
	
	
	public void SendErrorMessage(int errorCode, String errorMessage){
		out.println("HTTP/1.0 "+errorCode+" "+errorMessage);
		out.println("content-type:text/html");
		out.println();
		out.println("<html>");
		out.println("<title>Error Message");
		out.println("</title>");
		out.println("<body>");
		out.println("<h1>ErrorCode:"+errorCode+",Message"+errorMessage+"</h1>");
		
		out.println("</body>");
		out.println("</html");
		
		out.flush();
		out.close();
		try {
			in.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
	}
	
	public void sendFile(String filename){
		File file = new File(Processor.WEB_ROOT+"\\"+filename);
		if(!file.exists()){
			SendErrorMessage(404, "File Not Found");
			return;
		}
		try{
			InputStream in = new FileInputStream(file);
			byte content[] = new byte[(int)file.length()];
			in.read(content);
			out.println("HTTP/1.0 200 queryfile");
			out.println("content-length:"+content.length);
			out.println();
			out.write(content);
			out.flush();
			out.close();
			in.close();
		}catch(FileNotFoundException e){
			e.printStackTrace();
		}catch(IOException e){
			e.printStackTrace();
		}
	}
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
}
